Naoki Kaneyasu

TL;DR: It is found that sulfate was the potential transport medium for these radionuclides, and resuspended soil particles that attached radonuclides were not the major airborne radioactive substances at the time of measurement, which explains the relatively similar activity sizes of radiocesium measured at various sites during the Chernobyl accident.

TL;DR: In this article, the atmospheric boundary layer with a polarization lidar, a Sun photometer, and a high volume sampler at a coastal area of Tokyo Bay was intensively observed.

TL;DR: Aerosol chemical composition and gaseous species were measured at Cape Hedo, Okinawa, Japan (CHO) during the ABC/EAREX project period in March 2005, using high-time-resolution instruments including an Aerodyne quadrupole aerosol mass spectrometer (Q-AMS), a tapered element oscillating microbalance (TEOM), and gas monitors in order to investigate the transport and subsequent chemical transformation of aerosol in the east Asian region as discussed by the authors.

TL;DR: In this article, the monthly mean mass concentration of particles less than 10 μm in diameter (suspended particulate matter: SPM) and their chemical composition were measured for aerosols collected at two sites located in northern and southwestern regions of the urban area.

TL;DR: In this article, the spatial distribution, chemical forms, and potential sources have been investigated for extremely high concentrations of Cl and NO-3 in aerosols collected during an extensive study for winter pollution episodes in the Kanto Plain of Japan.